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Activity degree is an effective monitoring method to sensitively perceive the frequency, characteristics, quality, efficiency and other immediate conditions and subtle changes of scientific and technological innovation events, and it is an important supplementary to macroeconomic data. This paper constructs a monthly monitoring and evaluation indicator system for the activity degree of scientific and technological innovation in Chongqing, and systematically sorts out the data of 39 administrative districts and counties and 16 development zones of 12 months in 2021. The analysis reveals that (1) in the whole city and the development zone, there is a polarization effect of "one district" being active while "two groups" being inactive, and high energy level platforms being active while low energy level platforms being inactive; (2) districts and counties with development zones show prominent advantages in innovation activity, and the longer the establishment time and the higher the energy level, the more obvious the advantages could be observed; (3) local governments played an important role in the process of guiding and mobilizing the local innovation activity, and the stronger of the government's guiding function was observed in the less active of the region; and (4) the city's landmark science and technology activities and the rule of the time node have initially appeared. [ABSTRACT FROM AUTHOR]

Objective To explore the effect of enhanced recovery after surgery (ERAS) combined with pelvic floor magnetoelectric stimulation therapy to optimize the perioperative management on postoperative recovery of elderly women with pelvic organ prolapse. Methods A total of 110 elderly female patients treated in this hospital from June 2020 to May 2021 were selected as the study subjects and divided into the study group and control group by adopting the random number table method, 55 cases in each group. The study group used ERAS combined with pelvic floor magnetoelectric stimulation therapy. The control group adopted the routine perioperative management scheme.The operation-related indexes and the incidence rates of postoperative complications were compared between the two groups, and the scores of Quality of Recovery-40 questionnaire（QoR-40）,Pelvic Floor Distress Inventory-short form 20（PFDI-20）,Pelvic Floor Impact Questionnaire-7（PFIQ-7） before and after operation were compared between the two groups. Results There was no statistically significant difference in the general condition, operation time, intraoperative blood loss volume, time of anesthesia recovery room and postoperative fever between the two groups（P＞0.05）.The first time to get out of bed, first exhausting time, first eating time, first defecating time and hospitalization time in the study group were superior to those in the control group; the incidence rates of postoperative nausea and vomiting, abdominal distension, urinary retention and venous thrombosis in the study group were significantly lower than those in the control group, and the differences were statistically significant（P＜0.05）.The PFDI-20 and PFIQ-7 scores in postopertive 3 months in the study group were significantly lower than those in the control group, the QoR-40 score at postoperative 24,48 h in the study group was significantly higher than that in the control group, and the difference between the two groups was statistically significant（P＜0.05）.Conclusion The application of ERAS combined with pelvic floor magnetoelectric stimulation therapy can promote the perioperative recovery of elderly women with pelvic organ prolapse, reduce the incidence rate of postoperative complications, relieve the patients′ discomfort and improve the quality of life after operation. Objective To explore the effect of enhanced recovery after surgery (ERAS) combined with pelvic floor magnetoelectric stimulation therapy to optimize the perioperative management on postoperative recovery of elderly women with pelvic organ prolapse. Methods A total of 110 elderly female patients treated in this hospital from June 2020 to May 2021 were selected as the study subjects and divided into the study group and control group by adopting the random number table method, 55 cases in each group. The study group used ERAS combined with pelvic floor magnetoelectric stimulation therapy. The control group adopted the routine perioperative management scheme.The operation-related indexes and the incidence rates of postoperative complications were compared between the two groups, and the scores of Quality of Recovery-40 questionnaire（QoR-40）,Pelvic Floor Distress Inventory-short form 20（PFDI-20）,Pelvic Floor Impact Questionnaire-7（PFIQ-7） before and after operation were compared between the two groups. Results There was no statistically significant difference in the general condition, operation time, intraoperative blood loss volume, time of anesthesia recovery room and postoperative fever between the two groups（P＞0.05）.The first time to get out of bed, first exhausting time, first eating time, first defecating time and hospitalization time in the study group were superior to those in the control group; the incidence rates of postoperative nausea and vomiting, abdominal distension, urinary retention and venous thrombosis in the study group were significantly lower than those in the control group, and the differences were statistically significant（P＜0.05）.The PFDI-20 and PFIQ-7 scores in postopertive 3 months in the study group were significantly lower than those in the control group, the QoR-40 score at postoperative 24,48 h in the study group was significantly higher than that in the control group, and the difference between the two groups was statistically significant（P＜0.05）.Conclusion The application of ERAS combined with pelvic floor magnetoelectric stimulation therapy can promote the perioperative recovery of elderly women with pelvic organ prolapse, reduce the incidence rate of postoperative complications, relieve the patients′ discomfort and improve the quality of life after operation. [ABSTRACT FROM AUTHOR]

The incidence of non-alcoholic fatty liver disease (NAFLD) has increased sharply, and there is still a lack of effective drug treatments. Although great progress has been made in the research on the pathogenesis of NAFLD, the understanding of gender differences in NAFLD is still insufficient. Estrogen is important. The sex hormones affect the occurrence and development of NAFLD by regulating mood and energy homeostasis, adipose tissue function and distribution, inflammation, insulin resistance, liver fat accumulation, liver immunity, etc. Fully understand the role of estrogen and estrogen receptors in NAFLD The mechanism of action provides new ideas for the treatment of NAFLD. [ABSTRACT FROM AUTHOR]

2型糖尿病(T2DM)是以胰岛素相对缺乏和胰岛素抵抗为特点的代谢性疾病,T2DM 出现认知功能损伤(CI)的发 病机制和影响因素尚不十分清楚。对于磁共振成像影像学检查,该文从常规磁共振成像、基于体素形态学分析、磁共振波谱研究、 张量成像、静息态功能磁共振成像和磁共振动脉自旋标记成像研究等方面综述了T2DM 出现CI的磁共振成像研究的结果和进 展,进一步探究和了解该疾病的病理生理机制。 [ABSTRACT FROM AUTHOR]

BACKGROUND: p38 MAPK pathway has been shown to play an important role in the synthesis of inflammatory factors, but the relationship between p38 MAPK signaling pathway and interleukin 17, interleukin 6 and other inflammatory factors in periodontal ligament fibroblasts during orthodontic tooth movement is little reported. OBJECTIVE: To investigate the relationship of the expression of inflammatory cytokines interleukin 17 and interleukin 6 with p38 MAPK in human periodontal ligament fibroblasts under continuous static pressure, and to explore the effect of p38 MAPK signaling pathway on the expression of interleukin 17 and interleukin 6. METHODS: The periodontal tissues of fresh first and second premolars were obtained from the removed teeth of the orthodontic patients aged 11-15 years (informed consent had been obtained). Periodontal ligament fibroblasts were cultured in vitro, and the cell model loaded with gravity was established. Cell culture plates were loaded with 0, 1, 2 and 4 g/cm2 pressure for 5, 15, 30 and 60 minutes, respectively. The expression of p38 MAPK protein was detected. The passage 4 cells were seeded, and then randomized into six groups: blank, dimethyl sulfoxide, inhibitor (p38 MAPK blocker, SB203580), loading, loading plus dimethyl sulfoxide, and loading plus inhibitor groups. The intervention lasted for 60 minutes. The interleukin 17 and interleukin 6 protein and mRNA levels in periodontal ligament fibroblasts after loaded with 4 g/cm2 force were detected by RT-PCR and ELISA. RESULTS and CONCLUSION: (1) The expression level of p38 MAPK protein in the 2 and 4 g/cm2 groups was increased with time prolonged, peaked at 30 minutes, and began to decrease at 60 minutes. (2) Compared with the groups without loading, the loading groups showed an increase in the expression levels of interleukin 17 and interleukin 6. The expression level of interleukin 6 in the inhibitor group was down-regulated, and the expression level of interleukin 17 showed no significant difference. (3) To conclude, static pressure can promote human periodontal ligament fibroblasts to secrete interleukin 17 and interleukin 6. Interleukin 6 secretion may be related to p38 MAPK signaling pathway. However, there is insufficient evidence to demonstrate that p38 MAPK signaling pathway is involved in periodontal ligament fibroblasts inducing interleukin 17 expression under static pressure. [ABSTRACT FROM AUTHOR]

粒径≤2. 5μm的大气细颗粒物被称为PM2.5,它是空气污染的主要成分,是危害人类健康的主要危险因素之一。PM2.5粒径较小且携带大量有毒害成分,被人体吸入后,可沉积于呼吸道和肺部,进入肺泡上皮细胞,损坏肺泡表面的肺表面活性物质相关蛋白（SP）。SP是由肺泡Ⅱ型上皮细胞合成分泌的脂蛋白复合物,可分为亲水性蛋白SPA、SPD和疏水性蛋白SPB、SPC。SPA、SPD是对抗呼吸道病原体和过敏原的重要宿主防御组分,SPB、SPC主要作用是降低肺泡气—液界面处的表面张力、提高肺的顺应性。PM2.5能结合SP,并引起它们的表达水平和功能异常,与多种肺部疾病的发生发展密切相关。其机制可能是通过激活特定的信号通路、诱导炎症因子或细胞因子表达以及氧化损伤等途径,进而影响SP表达。 [ABSTRACT FROM AUTHOR]

目的探讨加速康复外科理念联合心理护理在必尿外科手术患者中的应用效果。方法选取20 1 8 年2 — 11 月 该院必尿外科收治的择期手木患者157 例作为研究对象，根据不同护理方式分为对照组(78 例） 和观察组(79 例）。对照组采取常 规护理，观察组在常规护理基础上触入加速康复外科理念联合心理护理。统计并分析2 组患者术后恢复情况、焦虑自评量表评分 改善情况等。结果观察组患者术后恢复情况、焦虑自评量表评分改善情况均明显优于对照组，差异均有统计学意义(P < 0. 05) 。结论加速康复外科理念联合心理护理可改善泌尿外科手术患者围手术期心理应激，加速患者术后康复。 [ABSTRACT FROM AUTHOR]

[Objective] Identifying the functional variation sites of the qPCJ promoter, a positive regulatory gene for grain protein content in rice, developing corresponding molecular markers, and analyzing the transport function of the qPCJ will provide a theoretical basis for elucidating the biological function of the qPCJ gene and its use in molecular breeding. [Method] The functional variation sites of qPCJ gene promoter were identified by site directed mutagenesis, transient transformation technology of rice protoplasts and double luciferase reporting method. The transport function of qPCl was analyzed by deficient yeast complementation test and the absorption experiment of amino acids in rice roots. [Result] Compared to the Nanyangzhan qPCJ sequence, the deletion of a 6-bp (CACAGA) at the - 7 hp to - 12 hp position in the Zhenshan97 qPCJ promoter would significantly increase the activity of its qPCJ promoter. Based on the above characteristics, a corresponding functional molecular marker PB13 was designed and validated using PCR technology in the recombinant inbred line population of Zhenshan97 and Nanyangzhan. Through the complementary experiment of defective yeast, it was found that qPCl protein could be transported various amino acids such as -y-aminobutyric acid, citrulline, aspartic acid, proline, arginine and glutamic acid. Through the amino acid absorption test of rice roots, it was found that the qPCJ could promote the absorption of various amino acids by rice roots, and had a fast absorption and transport rate for threonine, serine, glycine, alanine, proline, glutamic acid and acidic amino acids. [Conclusion] The promoter region of the qPCJ in rice, located at - 7 hp to - 12 hp, was its functional variation site. The qPCJ could participate in the transport of various amino acids in yeast and promote the absorption and transport of amino acids in rice roots. Therefore, the qPCl may be a broad-spectrum amino acid transport protein. The results of this experiment provide important information for further elucidating the molecular mechanism of qPCJ regulating grain protein content and using qPCJ for breeding high-quality new rice varieties. [ABSTRACT FROM AUTHOR]

Objective: To analyze the effect of ultrasound guided sclerosing agent lauromacrogol in the treatment of hepatic cysts. Methods: Eighty patients with hepatic cysts treated in our hospital between April 2011 and January 2015 were selected as study subjects- The subjects were divided into the control group(36 cases) and the treatment group（44 cases）. 36 cases in the control group were treated with anhydrous ethanol sclerosing agent while 44 cases in the treatment group were treated with lauromacrogol sclerotherapy. The cholinesterase (CHE), alkaline phosphatase (ALP), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and total bilirubin (TBIL) were determined before operation, at 1week and 6 months after operation. The treatment effect, adverse reactions and complications, hospitalization time and the time of cyst closure were compared between the two groups. Results: ① 1 week and 1 month after operation, the total effective rate of group B was higher than that of group A, but there only was significant difference at 1 week after operation (P<0.05). At 6 months after operation, the total effective rates in the two groups were similar (P>0.05); ② 1 week after operation, ALT and AST in group A increased. Compared with group B, there was significant difference (P<0.05). 6 months after operation, ALT of the two groups decreased (P>0.05); ③The incidence rates of abdominal pain, intracystic hemorrhage, intoxication and needle tract bleeding in group B were lower than those in group A, but there only were significant differences in the incidence of abdominal pain and intoxication (P<0.05); ④The hospitalization time and time of cyst closure of group B was shorter than that of group A (P<0.05). Conclusions: The application of ultrasound guided lauromacrogol sclerotherapy in the treatment of hepatic cysts, the effective rate is high and has little effect on the liver function of patients. Patients can recover quickly. The time of cyst closure is short and the safety is high. [ABSTRACT FROM AUTHOR]

Objective: To investigate the application value of lauromacrogol in the treatment of varicose veins of lower limb. Methods: The medical records of 75 patients (75 affected limbs) with varicosis of great saphenous vein of lower limbs confirmed between September 2013 and September 2015 were analyzed retrospectively. According to the treatment regimen, the patients were divided into two groups. Among them, 33 cases (33 limbs) treated by ultrasound guided injection of foam sclerosing agent lauromacrogol were included in the lauromacrogol group while 42 cases (42 limbs) treated by high ligation of great saphenous vein combined with stripping were included in the operation group. The operation time, intraoperative blood loss, off-bed time, treatment costs and incidence of postoperative complications were recorded. Patients were followed up for 6 to 12 months after operation, and the recurrence rate was recorded. Results: The operation time, off-bed and length of hospital stay of the lauromacrogol group were shorter than those of the operation group; the intraoperative blood loss and hospitalization expenses were less than those of the operation group (P＜0.05); The incidence rates of subcutaneous hematoma and skin numbness in the lauromacrogol group were significantly lower than those in the operation group (P＜0.05); The 12-month recurrence rate in the lauromacrogol group (12.12％) was lower than that in the operation group (33.33％)(P＜0.05). Conclusion: Injection of foam sclerosing agent lauromacrogol is an alternative minimally invasive therapy for treating varicosis of great saphenous vein of lower limbs. [ABSTRACT FROM AUTHOR]

The research status of phosphonate removal by different advanced oxidation processes is reviewed. The type and number of groups in phosphonate, coexisting ions and organic matters in water show significant effects on the degradation of phosphonate. Phosphonate could be degraded by free radical process and intramolecular electron transfer process. Compared to the free radical mechanism, intramolecular electron transfer process is less disturbed by water matrix, which shows better performance of phosphonate removal in actual wastewater treatment. The free radical mechanism and the nonradical mechanism have a similar oxidative mechanism for the degradation of phosphonate, which is removed via the cleavage of C-N or C-P bond in both processes. It is suggested the further studies should focus on the analysis of the morphological characteristics of the phosphonates in actual wastewater, the diversity and universality of degradation mechanism, phosphorus recovery and engineering application. [ABSTRACT FROM AUTHOR]

Proprotein convertase subtilisin/kexin type 9 (PCSK9) comprised of 692 amino acids is the ninth member of protease family. It binds to the low-density lipoprotein receptor(LDLR), leading to elevated levels of circulating low-density lipoprotein cholesterol(LDLC), which can lead to a number of cardiovascular diseases, and among then the relationship with cardiovascular calcification has recently received attention. Cardiovascular calcification is a kind of ectopic mineralisation in the cardiovascular system, which is mainly characterised by the production of mineral deposits in the vascular wall and vascular valves, and its pathogenesis is related to lipoprotein content, platelet activity, matrix vesicle (MV) release and inflammation, through which PCSK9 may be involved in the occurrence of cardiovascular calcification. Therefore, this article reviews the relationship between PCSK9 and cardiovascular calcification, emphasizing the specific role of PCSK9 in affecting cardiovascular calcification through various pathways, assisting in setting up emerging applications of PCSK9 amid vessel biological science and recognize innovative molecular mechanisms for its treatment. [ABSTRACT FROM AUTHOR]

Depression disorder, anxiety disorder, and obsessive-compulsive disorder are three different groups of mental disorders, but they have overlapping clinical symptoms and comorbidity. The application of diffusion tensor imaging technology to explore changes in the microstructure of white matter in patients with depression disorder, anxiety disorder, and obsessive-compulsive disorder can help to gain a deeper understanding of the mechanisms of disease occurrence and development, and provide reliable imaging evidence for its diagnosis and treatment. [ABSTRACT FROM AUTHOR]

Ferroptosis is an iron-dependent, non-apoptotic programmed cell death characterized by iron metabolism disorder that leads to intracellular iron overload, which induces lipid peroxidation through fenton reaction and activates ferroptosis. Ferroptosis is associated with many diseases, among which the relationship with abdominal aortic aneurysm has come into attention in the last few years. Abdominal aortic aneurysm is a degenerative disease characterized by structural destruction and irreversible dilation of the abdominal aortic wall. Its pathogenesis is related to oxidative stress, inflammation, loss of vascular smooth muscle cells and vascular calcification. Ferroptosis may play a role in the development of abdominal aortic aneurysm through the above pathways. Therefore, this paper reviews the pathogenesis of ferroptosis and abdominal aortic aneurysm, providing a new idea and target for the abdominal aortic aneurysm treatment. [ABSTRACT FROM AUTHOR]

Ferroptosis is a newly discovered iron-dependent mode of programmed cell death, characterized by intracellular iron overload, glutathione depletion and lipid peroxidation. Hypertension is one of the important risk factors for the occurrence of cardiovascular and cerebrovascular diseases, and more and more studies have shown that hypertension is closely related to ferroptosis. This article will review the association between ferroptosis and hypertension, as well as the possible mechanisms of ferroptosis affecting hypertension, in order to provide new ideas for the treatment of hypertension. [ABSTRACT FROM AUTHOR]

Objective To explore the application value of different courses of cognitive behavioral therapy (CBT) in improving anxiety and depression of cancer patients. Methods A total of 150 cancer patients admitted to Cancer Hospital of Affiliated Hospital of Zunyi Medical University from May 2016 to January 2018 were divided into the CBT group and the control group by simple random number method. The CBT group was divided into the non-family CBT group and the family CBT group according to whether they were accompanied by family members or not, with 50 cases in each group. The control group received routine biological treatment such as radiotherapy and chemotherapy and surgery. The non-family CBT group combined with CBT without family members on the basis of routine biological treatment, and the family CBT group combined with CBT with family members on the basis of routine biological treatment. Self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were used to investigate and analyze the three groups of patients before, and 4, 8 and 12 weeks after treatment. Results The SAS and SDS scores of the three groups decreased significantly at 4, 8 and 12 weeks after treatment compared with those before treatment, and the SAS and SDS scores of the CBT group decreased significantly at 4, 8 and 12 weeks after treatment in that order, and the differences were statistically significant (P<0. 05). There was no significant difference in SAS and SDS scores between 12 weeks after treatment and 4 and 8 weeks after treatment in the control group, and the differences were no statistically significant (P>0. 05) . The SDS score of the CBT group was significantly lower than that of the control group at 4 weeks after treatment (P<0. 05), but there was no significant difference in the SAS score between the two groups (P>0. 05). The SAS and SDS scores at 8 and 12 weeks after treatment were significantly lower than those in the control group (P<0. 05). The scores of SAS and SDS in the family CBT group were significantly lower than those in the non-family CBT group at 4, 8, 12 weeks after treatment (P<0. 05). Conclusion Conventional treatment can partially alleviate the anxiety and depression of cancer patients in the early stage of treatment. However, there is no further improvement in the middle and late stages of treatment, whereas CBT was effective in relieving anxiety and depression in cancer patients throughout the whole treatment process. The efficacy of CBT of 12 weeks treatment is better than 4 or 8 weeks of treatment. The efficacy of CBT may be better when family members are present. [ABSTRACT FROM AUTHOR]

[ Objective]The detection of functional genetic variation sites of Waxy allele in Yunnan soft rice germplasm resources, combined with the comprehensive analysis of amylase content in the rice varieties, provides a theoretical basis for the molecular breeding of new highquality soft rice varieties. [Method] Four functional molecular markers of Waxy gene were used to detect and analyze the 75 soft rice germplasm resources from Yunnan province by PCR technology, and the amylase content in rice grains was detected and comprehensively analyzed by near-infrared grain analyzer. [Result] In Yunnan soft rice germplasm resources, 39 of them were GG genotypes at the position of Waxy gene function marker lnl, and the remaining 36 were TI or GT genotypes. There were 63 soft rice germplasm resources lacking in the position of Waxy gene E2. There were 8, 37 and 3 0 soft rice germplasm resources with genotype A, G, C or T at the location of functional marker Emq, respectively. And there were 18, 15 and 42 soft rice germplasm resources with genotype A, G, C or Tat the location of functional marker E4op/hp, respectively. There were significant differences in amylase content of rice grain corresponding to different genotypes carried by Waxy functional markers E2, E4mq and E4op/hp. [ Conclusion] Based on the detection of waxy allele functional markers in Yunnan soft rice germplasm resources and the results of amylase content detection in rice grain, it was found that the content of amylase in corresponding rice grain with different Waxy alleles was significantly different, which laid a foundation for the use of Waxy gene functional markers to assist the selection of new soft rice varieties with high quality. [ABSTRACT FROM AUTHOR]

Objective The quality traits of the five imported japonica rice in Southern Henan were tested, and the results were analyzed comprehensively, which provided scientific; basis for the introduction and popularization of high quality japonica rice varieties in southern Henan. Method The main quality traits such as appearance quality, nutritional quality, processing quality，cooking and eating quality of five main japonica rice varieties imported in southern Henan were detected and analyzed by means of automatic; amino acid analyzer, near infrared grain analyzer, viseometer and microwave digestion analyzer, (combined with biochemical and physiochemical analysis techniques and methods. Result The chalkiness rate was the most significant difference among the five imported japonica rice varieties in southern Henan，followed by chalkiness area, and the chalkiness character of 9 You 418 varieties was not good in Southern Henan. 9 You 418, Yanggeng 805 and Longgeng 31 were moderate gelatinization temperature types, while the others were low gelatinization temperature types. The gel (consistency of these five japonica rice varieties ranged from 61 mm to 100 mm, which belonged to soft japonica rice. Except for Nangeng 9108, the amylose content of the five introduced japonica rice varieties reached the first-class national standard of high quality. During the whole simulated (cooking process, the viscosity of different japonica rice flour showed an increasing trend, but the increasing rate was not the same. The difference of total amino acid (content among the five imported japonica rice varieties in Southern Henan was relatively large. The total essential amino acid (content of Yanggeng 805 rice was the highest (23.80 mg g-1 ), followed by Nangeng 9108. The content of lysine and methionine in Nangeng 9108 rice was the highest, while that in Tianlonggeng 6 rice was the lowest. Conclusion The region of Southern Henan was beneficial to the generation of chalky characters of rice. The cooking and eating quality of the five imported japonica rice in Southern Henan had reached the third-level national standard of high quality rice, and the processing quality had reached the second-level national standard of high quality rice. There were some variations in the nutritional quality of the five imported japonica rice. The contents of restrictive amino acid lysine and methionine in Nangeng 9108 were the highest, and the (cooking and eating quality was good, and the palatability was also good. Thus, Nangeng 9108 is suitable for large-scale popularization and application in Southern Henan. [ABSTRACT FROM AUTHOR]

[Objective] In order to provide important reference for selection the new fragrant rice varieties with high quality, the contents of various amino acids of genii plasm resources of fragrant rice in the Southern Henan province were detected and the difference of amino acid contents in the fragrant rice was also analyzed. [Method] The fragrant rice flour was treated by the acid hydrolysis method, then the content of amino acids in the 18 fragrant rice varieties of rice gennplasm resources in the South Henan province was determined and analyzed by the automatic amino acid analyzer. [Result] The total amino acid content of different fragrant rice varieties was obviously different among the gennplasm resources of fragrant rice in the South of Henan province. The difference of total amino acid content between Heixiangdao 193 and Xinxianggeng 1 was 23.33 mg·g-1. The total essential amino acid content varied greatly from gennplasm resources of fragrant rice in South Henan, and the range of its variation was between 25.13 and 34.13 mg·g-1. The content of limiting amino acid and aromatic amino acid content of 18 fragrant rice varieties varied greatly, and the highest content of lysine was the Aiganxiangdaowan. Meanwhile, the content of heterocyclic amino acids was also abundant in the Aiganxiangdaowan. [Conclusion] Through the detection and analysis of amino acid content in the fragrant rice varieties of rice germplasm resources in the South Henan province, it was found that there were obvious differences in the content of amino acids in the 18 varieties of fragrant rice, which will provide important germplasm resources of fragrant rice for breeding new varieties with high nutritional quality in the future. [ABSTRACT FROM AUTHOR]