The ocular fundus vasculature, serving as a critical window for monitoring disease progression, represents one of the primary targets of hypoxic injury. A growing body of evidence suggests associations between specific ocular vascular pathologies and sleep-disordered breathing. Obstructive sleep apnea(OSA)has been implicated in fundus lesions through its detrimental effects on the central retinal artery, retinal veins, retinal microvasculature, and choroidal vessels. Mechanistically, these effects are linked to OSA-induced intermittent hypoxia, which drives hemodynamic disturbances, oxidative stress, inflammatory responses, altered blood composition, endothelial dysfunction, and neuroendocrine/metabolic dysregulation. This review synthesizes current evidence on OSA-related retinal vascular injury and elucidates its mechanistic pathways. The goal is to identify sensitive and specific retinal vascular biomarkers to facilitate the early detection of OSA and its associated complications.

OBJECTIVE: To observe the effects of electroacupuncture (EA) with different frequencies on spermatogenic function, testicular morphology and oxidative stress in oligoasthenospermia (OAT) rats, and to explore the mechanism and the optimal parameters of EA for OAT. METHODS: Sixty SPF-grade male SD rats were randomly divided into a solvent control group, a model group, a 2 Hz EA group, a 100 Hz EA group and a 2 Hz/100 Hz EA group, with 12 rats in each group. Except for the solvent control group, the other 4 groups were administered ornidazole suspension (800 mg·kg^-1·d^-1) by gavage for 28 d to establish the OAT model. Starting from the 1st of modeling, EA was applied at "Guanyuan" (CV4), "Qihai" (CV6) and bilateral "Sanyinjiao" (SP6) and "Zusanli" (ST36) in the 3 EA groups, continuous wave of 2 Hz, continuous wave of 100 Hz, and disperse-dense wave of 2 Hz/100 Hz were used in the 2 Hz EA group, the 100 Hz EA group, and the 2 Hz/100 Hz EA group, respectively, with current intensity of 1-3 mA, 30 min a time, once every other day, for 28 consecutive days. After intervention, the testicular index was calculated, epididymal sperm quality was assessed, and the fertility ability was observed; morphology of testicular tissue was observed by HE staining, and the Johnson score was calculated; the positive expression of reactive oxygen species (ROS) in testicular tissue was detected by immunofluorescence; the activity of superoxide dismutase (SOD) and catalase (CAT), as well as the level of malondialdehyde (MDA) in testicular tissue were measured by ELISA; the protein expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) in testicular tissue was detected by Western blot. RESULTS: Compared with the solvent control group, in the model group, the testicular index, sperm concentration, sperm motility and the number of offspring were decreased (P<0.01), the seminiferous tubules atrophied and the Johnson score decreased (P<0.01); the activity of SOD and CAT, as well as the protein expression of Nrf2 and HO-1 in testicular tissue were decreased (P<0.01); the sperm deformity rate, the positive expression of ROS and the MDA level in testicular tissue were increased (P<0.01). Compared with the model group, in the 2 Hz EA group, the 100 Hz EA group and the 2 Hz/100 Hz EA group, the testicular index, sperm concentration, sperm motility and the number of offspring were increased (P<0.05, P<0.01), the pathological morphology of testicular tissue improved and the Johnson scores increased (P<0.01); the activity of SOD and CAT, as well as the protein expression of Nrf2 and HO-1 in testicular tissue were increased (P<0.05, P<0.01); the sperm deformity rate, the positive expression of ROS and the MDA level in testicular tissue were decreased (P<0.05, P<0.01). Compared with the 2 Hz EA group, in the 2 Hz/100 Hz EA group, the testicular index, sperm concentration, sperm motility, as well as the CAT activity and HO-1 protein expression in testicular tissue were increased (P<0.01, P<0.05); the positive expression of ROS was decreased (P<0.01). Compared with the 100 Hz EA group, in the 2 Hz/100 Hz EA group, the testicular index was increased (P<0.01), the positive expression of ROS in testicular tissue was decreased (P<0.01). CONCLUSION EA with 2 Hz continuous wave, 100 Hz continuous wave, and 2 Hz/100 Hz disperse-dense wave can all improve the spermatogenic arrest and reduce the level of oxidative stress in testicular tissue in OAT rats, the mechanism may be related to up-regulating the protein expression of Nrf2 and HO-1 and improving oxidative stress. EA with disperse-dense wave of 2 Hz/100 Hz shows the optimal effect.
Male ; Animals ; Electroacupuncture ; Oxidative Stress ; Rats ; Rats, Sprague-Dawley ; Spermatogenesis ; Oligospermia/genetics* ; Humans ; Testis/metabolism* ; Superoxide Dismutase/metabolism* ; Asthenozoospermia/genetics* ; Acupuncture Points ; Malondialdehyde/metabolism*

The paper introduces 5 books written by WANG Mengying, including Suixiju Chongding Huoluan Lun, Guiyan Lu, Wenre Jingwei, Wang Mengying Yi'an and Suixiju Yinshipu; and analyzes the ideas of diagnosis and treatment of cholera and the academic thoughts in treatment with acupuncture-moxibustion therapy. In pathogenesis, cholera is classified into cold and heat types. Cholera of heat type roots on qi and blood. If the pathogenic factors are mild and located shallowly, the sneezing method, followed by scraping method, is adopted to open meridians and collaterals, as well as the qi level, so as to eliminate pathogens. When the pathogens go deeply, the bloodletting technique is used to clean the toxic heat in blood level and reduce the reversed qi. For cholera of cold type, warm ironing moxibustion is delivered to promote qi circulation and disperse cold, and improve qi movement. If spasm and syncope occur in cholera, no matter of cold or heat identification, the emergent measure is operated with the external application of pungent, warm and salty herbal plaster at Yongquan (KI1). When the pathogens are almost eliminated, the herbal medicines are combined to treat the symptoms and remove the causative factors of the disease.
Acupuncture Therapy/history* ; Moxibustion/history* ; Humans ; Cholera/history* ; China ; History, Ancient ; Medicine in Literature ; Books/history*

ObjectiveTaking the oligosaccharides in Rehmanniae Radix（RR） as the research object， the content determination method based on high performance liquid chromatography-evaporative light scattering detection（HPLC-ELSD） and thin layer chromatography（TLC） identification method were established to explore the content and distribution of oligosaccharides in different RR herbs and decoction pieces. MethodA total of 10 batches of fresh and raw RR， 12 batches of RR decoction pieces and Rehmanniae Radix Praeparata（RRP） were collected. A TLC identification method for fructose， sucrose， manninotriose， raffinose and stachyose in RR was established by using silica gel G thin-layer plates with ethyl acetate-water-anhydrous formic acid-glacial acetic acid（12∶6∶5∶4） as the developing agent and 10% sulfuric acid-ethanol solution as chromogenic agent. A HPLC-ELSD was used to determine the contents of fructose， glucose， sucrose， melibiose， raffinose， manninotriose and stachyose in different RR herbs and decoction pieces. Then principal component analysis（PCA） and partial least squares-discriminant analysis（PLS-DA） were used to analyze the contents of 7 kinds of saccharides in RR herbs and decoction pieces， and the differential components were screened with the value of variable importance in the projection（VIP）>1. ResultThe results of TLC identification showed that fresh RR， raw RR and its decoction pieces showed spots of the same color on the corresponding positions with the control products of stachyose， raffinose and sucrose， while the TLC of RRP showed spots of the same color at corresponding positions to manninotriose and fructose controls. The results of methodological investigations of 7 analytes met the requirements of determination. Only glucose， sucrose， raffinose and stachyose were detected in 10 batches of fresh RR and 10 batches of raw RR herbs， the average contents of which were 0.84%， 4.62%， 2.42% and 57.90% in fresh samples， while those were 3.16%， 9.36%， 7.05% and 38.10% in raw samples， respectively. In 12 batches of RR decoction pieces， the contents of the above seven sugars（fructose， glucose， sucrose， melibiose， raffinose， manninotriose and stachyose） were 1.68%， 4.27%， 9.96%， 0.53%， 6.85%， 3.05% and 37.52%， respectively. In 12 batches of RRP， the contents of the above seven sugars were 10.62%， 11.01%， 1.25%， 3.35%， 1.12%， 28.16% and 6.39%， respectively. The results of multivariate statistical analysis showed that fresh RR， raw RR and RRP could be distinguished from each other by the contents of the 7 sugars， and the main differential components were stachyose， sucrose， raffinose and manninotriose. ConclusionIn terms of oligosaccharides， the contents and types of saccharides in different herbs and decoction pieces of RR are quite different， and the TLC identification method based on this can be used to distinguish raw RR from RRP， which can lay a foundation for improving the quality standard of RR and developing and applying oligosaccharides in different processed products of RR.

Sha （痧） is an acute infectious disease characterised by the appearance of rashes on the skin， caused by exposure to epidemic toxin and pestilent qi. Sha Zhang Yu Heng （《痧胀玉衡》） discussed the treatment principles and methods， and listed collateral bloodletting as one of the main treatments. Through organizing the articles and proved cases， we found that the author believes Sha （痧） is caused by epidemic pathogen， belonging to heat toxin with rapid changes， so timely treatment for qi and blood simultaneously could achieve the effect of transforming qi into defensive qi. Sha Zhang Yu Heng focuses on patient's position during treatmet， the material of the needle， the site of treatment， the quantum of stimulation and the operation of the contraindications and other essentials. According to the depth of the disease location， use traditional Chinese herbal medicine， scraping together to identify the root of the disease. In addition， diet suggestions for the prevention of the recrudescence of disease are also described in detail.

Background::Radiation (IR)-induced DNA damage triggers cell cycle arrest and has a suppressive effect on the tumor microenvironment (TME). Wee1, a cell cycle regulator, can eliminate G2/M arrest by phosphorylating cyclin-dependent kinase 1 (CDK1). Meanwhile, programed death-1/programed death ligand-1 (PD-1/PDL-1) blockade is closely related to TME. This study aims to investigate the effects and mechanisms of Wee1 inhibitor AZD1775 and anti-PD-1 antibody (anti-PD-1 Ab) on radiosensitization of hepatoma.Methods::The anti-tumor activity of AZD1775 and IR was determined by 3-(4,5-dimethylthiazol-2-y1)-2,5-diphenyltetrazolium bromide (MTT) assay on human and mouse hepatoma cells HepG2, Hepa1-6, and H22. The anti-hepatoma mechanism of AZD1775 and IR revealed by flow cytometry and Western blot in vitro. A hepatoma subcutaneous xenograft mice model was constructed on Balb/c mice, which were divided into control group, IR group, AZD1775 group, IR + AZD1775 group, IR + anti-PD-1 Ab group, and the IR + AZD1775 + anti-PD-1 Ab group. Cytotoxic CD8 + T cells in TME were analyzed by flow cytometry. Results::Combining IR with AZD1775 synergistically reduced the viability of hepatoma cells in vitro. AZD1775 exhibited antitumor effects by decreasing CDK1 phosphorylation to reverse the IR-induced G2/M arrest and increasing IR-induced DNA damage. AZD1775 treatment also reduced the proportion of PD-1 +/CD8 + T cells in the spleen of hepatoma subcutaneous xenograft mice. Further studies revealed that AZD1775 and anti-PD-1 Ab could enhance the radiosensitivity of hepatoma by enhancing the levels of interferon γ (IFNγ) + or Ki67 + CD8 T cells and decreasing the levels of CD8 + Tregs cells in the tumor and spleen of the hepatoma mice model, indicating that the improvement of TME was manifested by increasing the cytotoxic factor IFNγ expression, enhancing CD8 + T cells proliferation, and weakening CD8 + T cells depletion. Conclusions::This work suggests that AZD1775 and anti-PD-1 Ab synergistically sensitize hepatoma to radiotherapy by enhancing IR-induced DNA damage and improving cytotoxic CD8 + T cells in TME.

Objective To investigate the effects of comprehensive nutrition management on glycolipid metabolism and pregnancy outcomes in patients with gestational diabetes mellitus(GDM).Methods A total of 121 pregnant women with GDM at 24-28 weeks gestation who were registered in the obstetrics department of 6 sub-central hospi-tals in China from May 2021 to July 2021 were included in this study and were randomly divided into intervention group(n=74)and control group(n=47).The intervention group received intensive comprehensive nutrition man-agement,including at least 6 outpatient interventions,individualized nutrition management and a half-day standard-ized outpatient education on gestational diabetes mellitus,continuous dynamic blood glucose monitoring and micro-blood glucose monitoring,and routine check of glycated albumin and urine every 4 weeks.Body weight,body com-position and diet and exercise implementation procedures and fetal development as well as complications were recor-ded.The control group received conventional nutritional guidance.The two groups were compared for difference in blood glucose related indicators at 37 weeks of gestation,weight gain before delivery,some lipid metabolism indica-tors,pregnancy outcomes,and oral glucose tolerance test(OGTT)at 42 days postpartum.Results Compared with the control group,the level of prenatal fasting blood glucose(P=0.006),intravenous plasma glucose(P=0.009)and blood ketone(P = 0.044)in the intervention group was significantly reduced.There was no significant difference in weight gain and weight attainment rate between the two groups.The 2-hour postpartum OGTTs of preg-nant women in the intervention group(P=0.006)were significantly lower than those in the control group,and the incidence of preeclampsia and postpartum blood loss were lower than those in the control group but no statistical difference was found.For newborns,the incidence of macrosomia(P=0.042)and planation(P=0.048)in the in-tervention group was slightly lower than that in the control group,and the results were statistically different.Other adverse pregnancy outcomes were not statistically different between the two groups.Conclusions Intensive compre-hensive nutrition management has a positive impact on the control of the blood glucose in pregnant women and im-proves the maternal and neonatal outcomes of women with GDM.

Objective To explore the mechanism of the therapy of promoting blood circulation and nourishing yin(PBCNY)in improving spermatogenesis in rats with varicocele based on Bcl-2/Bax pathway.Methods Thirty 8-week-old male SD rats were randomly divided into six groups(five rats per group):sham,model,levocarnitine(1.0 g/kg),and PBCNY low-dose(5.2 g/kg),PBCNY medium-dose(10.4 g/kg),and PBCNY high-dose(20.8 g/kg)groups.Apart from the sham group,all the groups were built a varicocele model by the classical Turner method.After 4 weeks,the sham group and model group were gavaged with normal saline,and the remaining groups were given with levocarnitine or different doses of PBCNY decoction once a day for 4 weeks.At the end of gavage,the sperm quality of rats in each group was detected by a computer-assisted sperm analyzer,and HE staining was used to observe the testicular tissue morphology of rats in each group and performed with Johnsen score.TUNEL method was used to detect apoptosis,RT-qPCR was used to detect Bcl-2 and Bax mRNA expression,and immunohistochemical method was used to detect cytochrome C protein expression.Results Compared to the sham group,sperm total count,motility rate and percentage of sperm with grade(a+b)motility were lower in the model group of rats(P<0.05).HE staining showed disturbed arrangement of seminiferous tubules in the testicular tissue with significant changes and decreased Johnsen score(P<0.05).The result of TUNEL assay showed that the apoptosis rate was increased in the model group(P<0.05).Bax mRNA expression was increased in testicular tissue(P<0.05).The result of immunohistochemistry showed that the positive expression of cytochrome C was increased in the model group(P<0.05).Compared with the model group,the rat sperm total count in the PBCNY medium-dose group,motility rate in the PBCNY low-and medium-dose groups,and percentage of sperm with grade(a+b)motility in the PBCNY low-dose group increased(P<0.05);the pathological structure of rat testis had different degrees of improvement,and Johnsen score increased in the PBCNY medium-dose group(P<0.05);the apoptosis rate of testicular cells decreased in the levocarnitine group and all doses of PBCNY groups(P<0.05);the expression of Bcl-2 mRNA increased in the PBCNY low-dose and high-dose groups(P<0.05),and the expression of Bax mRNA decreased in the levocarnitine group and the PBCNY medium-dose group(P<0.05);the positive expression of cytochrome C decreased in the PBCNY medium-dose group(P<0.05).Conclusion The therapy of PBCNY can improve sperm quality,repair damaged testicular tissue structure and improve spermatogenic function in rats with varicocele,and its mechanism of action may be related to the activation of Bcl-2/Bax pathway and inhibition of cell apoptosis.

Objective To explore the mechanism of the therapy of promoting blood circulation and nourishing yin(PBCNY)in improving spermatogenesis in rats with varicocele based on Bcl-2/Bax pathway.Methods Thirty 8-week-old male SD rats were randomly divided into six groups(five rats per group):sham,model,levocarnitine(1.0 g/kg),and PBCNY low-dose(5.2 g/kg),PBCNY medium-dose(10.4 g/kg),and PBCNY high-dose(20.8 g/kg)groups.Apart from the sham group,all the groups were built a varicocele model by the classical Turner method.After 4 weeks,the sham group and model group were gavaged with normal saline,and the remaining groups were given with levocarnitine or different doses of PBCNY decoction once a day for 4 weeks.At the end of gavage,the sperm quality of rats in each group was detected by a computer-assisted sperm analyzer,and HE staining was used to observe the testicular tissue morphology of rats in each group and performed with Johnsen score.TUNEL method was used to detect apoptosis,RT-qPCR was used to detect Bcl-2 and Bax mRNA expression,and immunohistochemical method was used to detect cytochrome C protein expression.Results Compared to the sham group,sperm total count,motility rate and percentage of sperm with grade(a+b)motility were lower in the model group of rats(P<0.05).HE staining showed disturbed arrangement of seminiferous tubules in the testicular tissue with significant changes and decreased Johnsen score(P<0.05).The result of TUNEL assay showed that the apoptosis rate was increased in the model group(P<0.05).Bax mRNA expression was increased in testicular tissue(P<0.05).The result of immunohistochemistry showed that the positive expression of cytochrome C was increased in the model group(P<0.05).Compared with the model group,the rat sperm total count in the PBCNY medium-dose group,motility rate in the PBCNY low-and medium-dose groups,and percentage of sperm with grade(a+b)motility in the PBCNY low-dose group increased(P<0.05);the pathological structure of rat testis had different degrees of improvement,and Johnsen score increased in the PBCNY medium-dose group(P<0.05);the apoptosis rate of testicular cells decreased in the levocarnitine group and all doses of PBCNY groups(P<0.05);the expression of Bcl-2 mRNA increased in the PBCNY low-dose and high-dose groups(P<0.05),and the expression of Bax mRNA decreased in the levocarnitine group and the PBCNY medium-dose group(P<0.05);the positive expression of cytochrome C decreased in the PBCNY medium-dose group(P<0.05).Conclusion The therapy of PBCNY can improve sperm quality,repair damaged testicular tissue structure and improve spermatogenic function in rats with varicocele,and its mechanism of action may be related to the activation of Bcl-2/Bax pathway and inhibition of cell apoptosis.

Objective To explore the mechanism of the therapy of promoting blood circulation and nourishing yin(PBCNY)in improving spermatogenesis in rats with varicocele based on Bcl-2/Bax pathway.Methods Thirty 8-week-old male SD rats were randomly divided into six groups(five rats per group):sham,model,levocarnitine(1.0 g/kg),and PBCNY low-dose(5.2 g/kg),PBCNY medium-dose(10.4 g/kg),and PBCNY high-dose(20.8 g/kg)groups.Apart from the sham group,all the groups were built a varicocele model by the classical Turner method.After 4 weeks,the sham group and model group were gavaged with normal saline,and the remaining groups were given with levocarnitine or different doses of PBCNY decoction once a day for 4 weeks.At the end of gavage,the sperm quality of rats in each group was detected by a computer-assisted sperm analyzer,and HE staining was used to observe the testicular tissue morphology of rats in each group and performed with Johnsen score.TUNEL method was used to detect apoptosis,RT-qPCR was used to detect Bcl-2 and Bax mRNA expression,and immunohistochemical method was used to detect cytochrome C protein expression.Results Compared to the sham group,sperm total count,motility rate and percentage of sperm with grade(a+b)motility were lower in the model group of rats(P<0.05).HE staining showed disturbed arrangement of seminiferous tubules in the testicular tissue with significant changes and decreased Johnsen score(P<0.05).The result of TUNEL assay showed that the apoptosis rate was increased in the model group(P<0.05).Bax mRNA expression was increased in testicular tissue(P<0.05).The result of immunohistochemistry showed that the positive expression of cytochrome C was increased in the model group(P<0.05).Compared with the model group,the rat sperm total count in the PBCNY medium-dose group,motility rate in the PBCNY low-and medium-dose groups,and percentage of sperm with grade(a+b)motility in the PBCNY low-dose group increased(P<0.05);the pathological structure of rat testis had different degrees of improvement,and Johnsen score increased in the PBCNY medium-dose group(P<0.05);the apoptosis rate of testicular cells decreased in the levocarnitine group and all doses of PBCNY groups(P<0.05);the expression of Bcl-2 mRNA increased in the PBCNY low-dose and high-dose groups(P<0.05),and the expression of Bax mRNA decreased in the levocarnitine group and the PBCNY medium-dose group(P<0.05);the positive expression of cytochrome C decreased in the PBCNY medium-dose group(P<0.05).Conclusion The therapy of PBCNY can improve sperm quality,repair damaged testicular tissue structure and improve spermatogenic function in rats with varicocele,and its mechanism of action may be related to the activation of Bcl-2/Bax pathway and inhibition of cell apoptosis.