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1.
Nat Genet ; 2024 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-38872029

RESUMEN

Excessive nitrogen promotes the formation of nonproductive tillers in rice, which decreases nitrogen use efficiency (NUE). Developing high-NUE rice cultivars through balancing nitrogen uptake and the formation of productive tillers remains a long-standing challenge, yet how these two processes are coordinated in rice remains elusive. Here we identify the transcription factor OsGATA8 as a key coordinator of nitrogen uptake and tiller formation in rice. OsGATA8 negatively regulates nitrogen uptake by repressing transcription of the ammonium transporter gene OsAMT3.2. Meanwhile, it promotes tiller formation by repressing the transcription of OsTCP19, a negative modulator of tillering. We identify OsGATA8-H as a high-NUE haplotype with enhanced nitrogen uptake and a higher proportion of productive tillers. The geographical distribution of OsGATA8-H and its frequency change in historical accessions suggest its adaption to the fertile soil. Overall, this study provides molecular and evolutionary insights into the regulation of NUE and facilitates the breeding of rice cultivars with higher NUE.

3.
BMC Plant Biol ; 24(1): 334, 2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38664603

RESUMEN

BACKGROUND: B-box (BBX) proteins are a type of zinc finger proteins containing one or two B-box domains. They play important roles in development and diverse stress responses of plants, yet their roles in wheat remain unclear. RESULTS: In this study, 96 BBX genes were identified in the wheat genome and classified into five subfamilies. Subcellular localization prediction results showed that 68 TaBBXs were localized in the nucleus. Protein interaction prediction analysis indicated that interaction was one way that these proteins exerted their functions. Promoter analysis indicated that TaBBXs may play important roles in light signal, hormone, and stress responses. qRT-PCR analysis revealed that 14 TaBBXs were highly expressed in seeds compared with other tissues. These were probably involved in seed dormancy and germination, and their expression patterns were investigated during dormancy acquisition and release in the seeds of wheat varieties Jing 411 and Hongmangchun 21, showing significant differences in seed dormancy and germination phenotypes. Subcellular localization analysis confirmed that the three candidates TaBBX2-2 A, TaBBX4-2 A, and TaBBX11-2D were nuclear proteins. Transcriptional self-activation experiments further demonstrated that TaBBX4-2A was transcriptionally active, but TaBBX2-2A and TaBBX11-2D were not. Protein interaction analysis revealed that TaBBX2-2A, TaBBX4-2A, and TaBBX11-2D had no interaction with each other, while TaBBX2-2A and TaBBX11-2D interacted with each other, indicating that TaBBX4-2A may regulate seed dormancy and germination by transcriptional regulation, and TaBBX2-2A and TaBBX11-2D may regulate seed dormancy and germination by forming a homologous complex. CONCLUSIONS: In this study, the wheat BBX gene family was identified and characterized at the genomic level by bioinformatics analysis. These observations provide a theoretical basis for future studies on the functions of BBXs in wheat and other species.


Asunto(s)
Germinación , Familia de Multigenes , Latencia en las Plantas , Proteínas de Plantas , Triticum , Triticum/genética , Triticum/fisiología , Latencia en las Plantas/genética , Germinación/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Semillas/genética , Semillas/crecimiento & desarrollo , Regulación de la Expresión Génica de las Plantas , Genes de Plantas , Simulación por Computador , Filogenia
4.
Med ; 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38677287

RESUMEN

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is highly prevalent in children and adolescents, particularly those with obesity. NAFLD is considered a hepatic manifestation of the metabolic syndrome due to its close associations with abdominal obesity, insulin resistance, and atherogenic dyslipidemia. Experts have proposed an alternative terminology, metabolic dysfunction-associated fatty liver disease (MAFLD), to better reflect its pathophysiology. This study aimed to develop consensus statements and recommendations for pediatric MAFLD through collaboration among international experts. METHODS: A group of 65 experts from 35 countries and six continents, including pediatricians, hepatologists, and endocrinologists, participated in a consensus development process. The process encompassed various aspects of pediatric MAFLD, including epidemiology, mechanisms, screening, and management. FINDINGS: In round 1, we received 65 surveys from 35 countries and analyzed these results, which informed us that 73.3% of respondents agreed with 20 draft statements while 23.8% agreed somewhat. The mean percentage of agreement or somewhat agreement increased to 80.85% and 15.75%, respectively, in round 2. The final statements covered a wide range of topics related to epidemiology, pathophysiology, and strategies for screening and managing pediatric MAFLD. CONCLUSIONS: The consensus statements and recommendations developed by an international expert panel serve to optimize clinical outcomes and improve the quality of life for children and adolescents with MAFLD. These findings emphasize the need for standardized approaches in diagnosing and treating pediatric MAFLD. FUNDING: This work was funded by the National Natural Science Foundation of China (82070588, 82370577), the National Key R&D Program of China (2023YFA1800801), National High Level Hospital Clinical Research Funding (2022-PUMCH-C-014), the Wuxi Taihu Talent Plan (DJTD202106), and the Medical Key Discipline Program of Wuxi Health Commission (ZDXK2021007).

6.
Medicine (Baltimore) ; 102(48): e36169, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-38050304

RESUMEN

RATIONALE: Sotos syndrome is an congenital overgrowth syndrome characterized by the primary features including overgrowth, distinctive facial features, learning disability, and accompanied with various second features. NSD1 deletion or mutation is a major pathogenic cause. Although there are some reports on treatment of this disease worldwide, less cases under treatment have been published in China. PATIENT CONCERNS: A 1-year-old boy had macrocephaly, gigantism, excessive high body height, a particular face and delayed development, with a pathogenic gene of NSD1 (NM_022455.5:c.3536delA in exon 5). DIAGNOSIS AND INTERVENTIONS: The child was definitely diagnosed as Sotos syndrome and have 3 months' combination treatment of traditional Chinese medicine and rehabilitation. OUTCOMES: The child made a great progress in global development. LESSONS: This case firstly describes the traditional Chinese medicine and rehabilitation to treat Sotos syndrome in China. There is no radical cure, but our therapy could improve the prognosis and the life quality of the patient. Therefore, this case provides a reference to the clinical treatment of Sotos syndrome.


Asunto(s)
Síndrome de Sotos , Niño , Masculino , Humanos , Lactante , Síndrome de Sotos/genética , Histona Metiltransferasas/genética , N-Metiltransferasa de Histona-Lisina/genética , Medicina Tradicional China , Mutación
7.
Nutrition ; 116: 112189, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37689015

RESUMEN

OBJECTIVES: Future primary prevention strategies may benefit from understanding the connection between mortality in individuals with central obesity and modifiable lifestyle factors like dietary intake. This study sought to determine whether there was a separate relationship between folate, vitamin B6, and vitamin B12 intake and all-cause and cause-specific mortality in the US population with central obesity. METHODS: The study analyzed data from the National Health and Nutrition Examination Survey between 1999 and 2016. Using the Cox proportional hazards model, the association between dietary intake of B vitamins and all-cause and cause-specific mortality was examined. A total of 7718 adults with central obesity were enrolled, with a mean age of 49.87 (SD = 0.25) y at baseline. RESULTS: Folate intake was independently associated with a decreased incidence of all-cause mortality (adjusted hazard ratio = 0.71; 95% CI, 0.58-0.87). Furthermore, higher intake of vitamin B6 and vitamin B12 was inversely correlated with cardiovascular disease mortality (adjusted hazard ratio = 0.63; 95% CI, 0.40-0.98; and adjusted hazard ratio = 0.44; 95% CI, 0.29-0.65, respectively) and the finding reveal an interaction between homocysteine and vitamin B12 and folate on All-cause mortality CONCLUSIONS: The findings of this study suggest that vitamin B12 and folate intake may be protective factors in individuals with central obesity. It is important to consider both their total homocysteine level and body mass index in conjunction with these nutrients. Further research is needed to validate these findings.


Asunto(s)
Complejo Vitamínico B , Adulto , Humanos , Persona de Mediana Edad , Encuestas Nutricionales , Obesidad Abdominal , Causas de Muerte , Ácido Fólico , Vitamina B 12 , Vitamina B 6 , Piridoxina , Homocisteína
8.
Nat Cell Biol ; 25(8): 1196-1207, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37537365

RESUMEN

In animals, maternal diet and environment can influence the health of offspring. Whether and how maternal dietary choice impacts the nervous system across multiple generations is not well understood. Here we show that feeding Caenorhabditis elegans with ursolic acid, a natural plant product, improves axon transport and reduces adult-onset axon fragility intergenerationally. Ursolic acid provides neuroprotection by enhancing maternal provisioning of sphingosine-1-phosphate, a bioactive sphingolipid. Intestine-to-oocyte sphingosine-1-phosphate transfer is required for intergenerational neuroprotection and is dependent on the RME-2 lipoprotein yolk receptor. Sphingosine-1-phosphate acts intergenerationally by upregulating the transcription of the acid ceramidase-1 (asah-1) gene in the intestine. Spatial regulation of sphingolipid metabolism is critical, as inappropriate asah-1 expression in neurons causes developmental axon outgrowth defects. Our results show that sphingolipid homeostasis impacts the development and intergenerational health of the nervous system. The ability of specific lipid metabolites to act as messengers between generations may have broad implications for dietary choice during reproduction.


Asunto(s)
Neuroprotección , Esfingolípidos , Animales , Esfingolípidos/metabolismo , Caenorhabditis elegans/genética , Intestinos , Ácido Ursólico
9.
Adv Ther ; 40(10): 4574-4588, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37584898

RESUMEN

INTRODUCTION: Triptorelin is available as 1- and 3-month prolonged-release (PR) formulations; at the time of the study, only the former was approved for central precocious puberty (CPP) in China. This study assessed the efficacy and safety of the triptorelin 3-month PR formulation in Chinese children with CPP. METHODS: In this 12-month, prospective, open-label, multicentre, single-arm study (NCT04736602), Chinese children (mean age [standard deviation (SD)], 7.6 ± 0.8 years) with CPP received triptorelin pamoate 15 mg on day 1 and at months 3, 6 and 9. The primary endpoint was the proportion with luteinizing hormone (LH) suppression (stimulated peak LH ≤ 3 IU/L after gonadotropin-releasing hormone [GnRH] stimulation) at month 3. Secondary endpoints included changes from baseline in hormone levels and clinical parameters, as well as safety assessments. RESULTS: Overall, 32 children were enrolled, including three boys. LH suppression to prepubertal levels (≤ 3 IU/L) after GnRH stimulation was observed in 100%, 93.5% and 93.5% of participants at months 3, 6 and 12, respectively. Basal and peak LH and follicle-stimulating hormone levels were substantially suppressed at months 3, 6 and 12, and most participants showed sex hormone suppression. At months 6 and 12 respectively 92.9% and 89.3% of girls had stable breast development, and all boys had stable genital development. There was a decrease in mean growth velocity from baseline (8.96 cm/year) to months 3, 6 and 12 (8.07, 5.24 and 6.94 cm/year, respectively). The mean difference between bone and chronological age decreased from baseline (2.85 years) to month 12 (2.39 years). In girls, uterine length was stable or reduced at month 12; in boys, testicular volume was reduced. Triptorelin was well tolerated. CONCLUSION: The triptorelin 3-month PR formulation demonstrated similar efficacy to that previously reported in non-Chinese patients with CPP and had an acceptable safety profile. This supports triptorelin 3-month PR as a viable option for Chinese children with CPP.


Central precocious puberty (CPP) occurs when the reproductive organs and secondary sexual characteristics develop too early in children (before 8 years old in girls or 9 years old in boys). It can cause significant psychological harm and may lead to health problems later in life. Triptorelin is a type of treatment designed to suppress the hormonal activity responsible for CPP and therefore slow down early pubertal development. Triptorelin can be given as an injection into muscle every month or every 3 months; the 3-monthly formulation is commonly used in many countries but at the time of this study it was not licensed for patients with CPP in China. Our trial assessed the effect of triptorelin treatment every 3 months for 1 year in 32 Chinese children with CPP. For all patients who had measurements available, 3-monthly triptorelin suppressed luteinizing hormone­a key hormone involved in CPP­to below typical prepubertal levels. Other hormones involved in puberty were also suppressed. Children experienced a slowing down of the development of secondary sexual characteristics (breasts, genitals and pubic hair), and stabilization or reduction in the size of internal sexual organs (uterine length in girls and testicular volume in boys). Their height also increased less rapidly than previously. There were no concerning side effects of triptorelin treatment, and the safety profile matched that seen in other countries where triptorelin is widely used for CPP. Overall, our study findings suggest that the 3-monthly triptorelin formulation may be a good option for Chinese children with CPP.


Asunto(s)
Pubertad Precoz , Pamoato de Triptorelina , Femenino , Masculino , Humanos , Niño , Preescolar , Pamoato de Triptorelina/efectos adversos , Pubertad Precoz/tratamiento farmacológico , Pubertad Precoz/inducido químicamente , Estudios Prospectivos , Hormona Liberadora de Gonadotropina/uso terapéutico , Hormona Luteinizante/uso terapéutico
12.
Chin J Nat Med ; 21(3): 163-171, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37003639

RESUMEN

10,11-Dehydrocurvularin (DCV) is a natural-product macrolide that has been shown to exert anti-inflammatory activity. However, the underlying mechanism of its anti-inflammatory activity remains poorly understood. Aberrant activation of the NLRP3 inflammasome is involved in diverse inflammation-related diseases, which should be controlled. The results showed that DCV specifically inhibited the activation of the NLRP3 inflammasome in association with reduced IL-1ß secretion and caspase-1 activation, without effect on the NLRC4 and AIM2 inflammasomes. Furthermore, DCV disturbed the interaction between NEK7 and NLRP3, resulting in the inhibition of NLRP3 inflammasome activation. The C=C double bond of DCV was required for the NLRP3 inflammasome inhibition induced by DCV. Importantly, DCV ameliorated inflammation in vivo through inhibiting the NLRP3 inflammasome. Taken together, our study reveals a novel mechanism by which DCV suppresses inflammation, which indicates the potential role of DCV in NLRP3 inflammasome-driven inflammatory disorders.


Asunto(s)
Inflamasomas , Proteína con Dominio Pirina 3 de la Familia NLR , Animales , Ratones , Proteína con Dominio Pirina 3 de la Familia NLR/genética , Inflamación/tratamiento farmacológico , Antiinflamatorios/farmacología , Interleucina-1beta/genética , Ratones Endogámicos C57BL
13.
Front Pediatr ; 11: 1057014, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36873653

RESUMEN

Objective: This article analyzes the data of four families with mutations of the GLA (galactosidase) gene with a special focus on the clinical presentation, diagnosis, and interdisciplinary clinical management of Fabry disease (FD) and enzyme replacement therapy (ERT) treatment, and has the aim to assess more accurate prevention and treatment strategy. Methods: The MSSI (Mainz Severity Score Index) scale was used to evaluate the clinical data of five children diagnosed in our hospital, and the genotypes of all the patients with FD were collected. Two of the male children started ERT. We summarize the clinical effect and the evaluation of globotriaosylsphingosine (Lyso-GL-3) before and after treatment. Results: Five children were confirmed as having FD using the family histories, clinical manifestations, α-galactosidase A (a-Gal A) activity, and genetic test results. Two children used agalsidase α every 2 weeks regularly, after ERT. Their clinical symptoms improved, their pain intensity was significantly relieved, and upon re-examination their Lyso-GL-3 decreased conspicuously and no serious adverse reactions occurred. We report for the first time four families with children with FD. The youngest child was only 1 year old. The four families included one girl which is rare in X-linked lysosomal storage diseases. Conclusion: The clinical phenotype of FD in childhood is nonspecific, and the misdiagnosis rate is high. Most children with FD have a delayed diagnosis, and their organs are often seriously damaged in adulthood. Pediatricians must improve their diagnosis and treatment awareness, screen high-risk groups, and emphasize multidisciplinary cooperation and holistic lifestyle management after diagnosis. The diagnosis of the proband is also conducive to the mining of other cases of FD families and has important guiding significance for prenatal diagnosis.

15.
Front Mol Neurosci ; 15: 962974, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36385772

RESUMEN

Deciphering the physiological function of TGF-ß (the transforming growth factor beta) family ligands is import for understanding the role of TGF-ß in animals' development and aging. Here, we investigate the function of TIG-2, one of the ligands in Caenorhabditis elegans TGF-ß family, in animals' behavioral modulation. Our results show that a loss-of-function mutation in tig-2 gene result in slower locomotion speed in the early adulthood and an increased density of cholinergic synapses, but a decreased neurotransmitter release at neuromuscular junctions (NMJs). Further tissue-specific rescue results reveal that neuronal and intestinal TIG-2 are essential for the formation of cholinergic synapses at NMJs. Interestingly, tig-2(ok3416) mutant is characterized with reduced muscle mitochondria content and adenosine triphosphate (ATP) production, although the function of muscle acetylcholine receptors and the morphology muscle fibers in the mutant are comparable to that in wild-type animals. Our result suggests that TIG-2 from different neuron and intestine regulates worm locomotion by modulating synaptogenesis and neurotransmission at NMJs, as well as energy metabolism in postsynaptic muscle cells.

16.
Physiol Mol Biol Plants ; 28(9): 1695-1711, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36387979

RESUMEN

The C2 domain family proteins in plants has been recently shown to be involved in the response to abiotic stress such as salt and drought stress. However, less information on C2 domain family members has been reported in Sorghum bicolor (L.), which is a tolerant cereal crop. To elaborate the mechanism of C2 domain family members in response to abiotic stress, bioinformatic methods were used to analyze this family. The results indicated that 69 C2 domain genes belonging to 5 different groups were first identified within the sorghum genome, and each group possessed various gene structures and conserved functional domains. Second, those C2 family genes were localized on 10 chromosomes 3 tandem repeat genes and 1 pair of repeat gene fragments were detected. The family members further presented a variety of stress responsive cis-elements. Third, in addition to being the major integral component of the membrane, sorghum C2 domain family proteins mainly played roles in response to abiotic and biotic stress with their organic transport and catalytic activity by specific location in the cell on the basis of gene ontology analysis. C2 family genes were differentially expressed in root, shoot or leaf, and shown different expression profiling after saline-alkali stress, which indicated that C2 family members played an important role in response to saline-alkali stress based on the transcription profiles of RNA-seq data and expression analysis by quantitative real-time polymerase chain reaction. Besides, most C2 family members were mainly located in cytoplasmi and nucleus. Weighted gene co-expression network analysis revealed three modules (turquoise, dark magenta and pink) that were associated with stress resistance, respectively. Therefore, the present research provides comprehensive information for further analysis of the molecular function of C2 domain family genes in sorghum. Supplementary Information: The online version contains supplementary material available at 10.1007/s12298-022-01222-3.

17.
Front Pharmacol ; 13: 955809, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36034802

RESUMEN

Objective: Polyethylene glycol recombinant human growth hormone (PEG-rhGH, Jintrolong®) is the first long-acting rhGH preparation that is approved to treat children with growth hormone deficiency (GHD) in China. Clinical experience with dose selections of PEG-rhGH is scarce. The present study compared the efficacy and safety of a lower dose to increase dosing regimens of PEG-rhGH treatment. Methods: A multicenter, randomized, open-label, dose-comparison clinical study was conducted to compare the improvements in the height standard deviation score (Ht SDS), height velocity (HV), insulin-like growth factor-1 (IGF-1) SDS, and safety profiles of children with GHD who are treated with 0.2 mg/kg/week of PEG-rhGH dose or 0.14 mg/kg/week for 26 weeks. Results: Ht SDS, HV, and IGF-1 SDS increased significantly after PEG-rhGH treatment in the two dose groups (p < 0.05). The improvements of Ht SDS, HV, and IGF-1 SDS were more significant in the high-dose group than in the low-dose group (p < 0.05). Ht SDS improvement in low-dose group was not non-inferiority to that in the high-dose group (p = 0.2987). The incidences of adverse events were comparable between the two groups. Conclusion: The improvements of Ht SDS, HV, and IGF-1 SDS were more significant in the high-dose group than in the low-dose group (p < 0.05). PEG-rhGH at the dose of 0.14 mg/kg/week was effective and safe for children with GHD. Clinical Trial Registration: clinicaltrials.gov, identifier NCT02908958.

19.
Front Plant Sci ; 13: 870586, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35620700

RESUMEN

Wheat is one of the most widely cultivated food crops worldwide, and the safe production of wheat is essential to ensure food security. Soil salinization and drought have severely affected the yield and quality of wheat. Valine-glutamine genes play important roles in abiotic stress response. This study assessed the effect of the gene TaVQ14 on drought and salt stresses resistance. Sequence analysis showed that TaVQ14 encoded a basic unstable hydrophobic protein with 262 amino acids. Subcellular localization showed that TaVQ14 was localized in the nucleus. TaVQ14 was upregulated in wheat seeds under drought and salt stress. Under NaCl and mannitol treatments, the percentage of seed germination was higher in Arabidopsis lines overexpressing TaVQ14 than in wild-type lines, whereas the germination rate was significantly lower in plants with a mutation in the atvq15 gene (a TaVQ14 homolog) than in WT controls, suggesting that TaVQ14 increases resistance to salt and drought stress in Arabidopsis seeds. Moreover, under salt and drought stress, Arabidopsis lines overexpressing TaVQ14 had higher catalase, superoxide dismutase, and proline levels and lower malondialdehyde concentrations than WT controls, suggesting that TaVQ14 improves salt and drought resistance in Arabidopsis by scavenging reactive oxygen species. Expression analysis showed that several genes responsive to salt and drought stress were upregulated in Arabidopsis plants overexpressing TaVQ14. Particularly, salt treatment increased the expression of AtCDPK2 in these plants. Moreover, salt treatment increased Ca2+ concentrations in plants overexpressing TaVQ14, suggesting that TaVQ14 enhances salt resistance in Arabidopsis seeds through calcium signaling. In summary, this study demonstrated that the heterologous expression of TaVQ14 increases the resistance of Arabidopsis seeds to salt and drought stress.

20.
Ther Clin Risk Manag ; 18: 113-124, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35342293

RESUMEN

Objective: This study aimed to evaluate the clinical efficacy of recombinant human growth hormone (rhGH) in the treatment of children with idiopathic short stature (ISS) and growth hormone deficiency (GHD) and to explore the related factors affecting treatment efficacy. Methods: The current research reflects a real-world study. A total of 79 patients with ISS and 95 patients with GHD (both groups pre-puberty) who had been treated with rhGH for more than one year from January 2010 to September 2019 were included in this study. The patients were divided into two groups, ie, an ISS and a GHD group, respectively. The growth indexes, such as chronological age (CA), bone age (BA), height standard deviation score (HtSDS), insulin-like growth factor-1 (IGF-1) SDS, and body mass index were recorded and compared between the two groups before and after treatment. The treatment efficacy was evaluated according to changes in HtSDS before and after treatment, and the influencing factors of clinical efficacy were analyzed using a multivariate regression model. Results: At the start of treatment, the differences in CA, BA, height, weight, sexual development stage, HtSDS, mid-parental height SDS, and IGF-1 SDS between the two groups were not statistically significant (P > 0.05). However, the initial dose of rhGH in the GHD group was significantly lower than in the ISS group (P < 0.001). Following rhGH treatment, the differences in CA, BA, BA/CA ratio, and IGF-1 SDS measured at 6, 12, 18, and 24 months between the ISS and GHD groups were not statistically significant, while the difference in HtSDS measured at 6 months was statistically significant. With the extension of rhGH treatment time, the annual growth rate (GV) gradually decreased, and the difference between HtSDS and the baseline gradually increased; however, the differences between the ISS and GHD groups were not statistically significant. The most important factor affecting the treatment efficacy for patients with ISS was age at the start of treatment; the most important factors affecting the treatment efficacy for patients with GHD were age and IGF-1 SDS. Conclusion: Recombinant human growth hormone treatment can significantly improve the height of patients with ISS and GHD. There was no significant difference in growth rate between patients with ISS and those with GHD at relatively high doses. The common factor affecting the treatment efficacy of the two groups was the age at the start of treatment. During treatment, monitored data indicated that rhGH treatment of GHD and ISS thyroid function showed a clinical phenomenon in the form of increased free triiodothyronine, rather than hypothyroidism, which was rarely reported in existing studies.

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